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2 mu m high thulium doped fluorphosphate glass optical fiber and preparation thereof

A technology of fluorophosphate glass and thulium fluorophosphate, which is applied in glass manufacturing equipment, manufacturing tools, etc., to achieve the effects of good mechanical strength, low production cost, and simple preparation and drawing processes

Inactive Publication Date: 2009-07-22
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few reports on fluorophosphate glass and optical fiber to achieve 2μm light emission at home and abroad.

Method used

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  • 2 mu m high thulium doped fluorphosphate glass optical fiber and preparation thereof
  • 2 mu m high thulium doped fluorphosphate glass optical fiber and preparation thereof
  • 2 mu m high thulium doped fluorphosphate glass optical fiber and preparation thereof

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preparation example Construction

[0048] The preparation method of 2 μm highly doped thulium fluorophosphate glass optical fiber of the present invention comprises the following steps:

[0049] select the raw material formula of core glass and the raw material formula of inner cladding glass by embodiment 1;

[0050] Melting of the core glass and inner cladding glass described in :

[0051] ① Melting of the core glass: Weigh the powdered raw materials according to the formula in Example 1, mix them evenly, and put them in a platinum crucible and melt them in a silicon carbide rod electric furnace. The melting temperature is 1020-1100 °C. After homogenization and clarification, the core glass melt is ready to be released at 800-1000°C;

[0052] 2. Melting of the inner cladding glass: weigh each powdery raw material according to the formula in Example 1, the melting process of the inner cladding glass is exactly the same as the melting process of the core glass, the inner cladding glass melt Prepare to be bak...

example 2

[0061] The raw material formulations of Example 2 and Example 3 are shown in Table 1, and the melting process of the core material and inner cladding glass is the same as that of Example 1 above.

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Abstract

The invention discloses a 2-micron high-doped thulium fluo phosphate glass fiber and a preparation method thereof. A fiber core is fluo phosphate glass; core glass and inner coating glass are prepared by using a fusion method; an optical fiber perform is prepared by using a suction pouring method; and finally the glass fiber is manufactured by drawing. The fiber manufactured by drawing has high optical uniformity and excellent physicochemical properties. Moreover, when the Tm ion is doped to achieve 6mol percent, a concentration quenching phenomenon dose not appear still. The invention has the advantages that: (1) the fluo phosphate glass fiber of the invention has good fiber mechanical strength and high chemical stability; (2) the fluo phosphate glass fiber obtained by the high-concentration doping of the Tm ion can obtain effective 2-micron laser output; and (3) the fluo phosphate glass fiber of the invention has simpler preparing technique, lower production cost, and excellent practical prospect.

Description

technical field [0001] The invention relates to a fluorophosphate glass optical fiber, in particular to a 2 μm highly doped thulium fluorophosphate glass optical fiber and a preparation method thereof. Background technique [0002] In recent years, rare earth-doped solid-state lasers with 2 μm output have attracted people's attention because of their wide application. Because the 2μm laser is very close to the 1.93μm absorption peak of water, the absorption and penetration depth of biological tissue is shallow, so it is an ideal medical laser; in addition, the 2μm laser has the characteristics of low atmospheric extinction ratio and safety to human eyes, and can be used in Coherent Doppler wind radar and other long-range detection systems; moreover, 2μm laser is the most suitable pumping source for obtaining 3-5μm optical parametric oscillator, which determines its military role. Therefore, no matter in military or civilian use, the development of 2μm lasers has an urgent n...

Claims

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Application Information

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IPC IPC(8): C03C13/04C03B37/01
CPCC03C3/247C03C13/048
Inventor 张军杰衣丽霞王孟张丽艳汪国年于春雷胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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